Permethrin Storage — Pyrethroid Insecticide Tank Selection (Pounce, Permanone, Astro)

Storing Permethrin? Start Here

Permethrin is a versatile insecticide used in agriculture, public health, pest control, livestock management, and even military applications. It's derived from chrysanthemum flowers, making it effective against a wide range of insects while being relatively safe for humans. When storing permethrin, it's important to know that it comes in different forms, such as emulsifiable concentrates (EC), water-dispersible granules (WDG), and microencapsulated suspensions (CS). Each form has its specific storage needs, so choosing the right tank material is crucial.

Can you store it in a poly tank?

Yes, but with some caveats. For permethrin EC, which contains petroleum solvents, standard HDPE or XLPE tanks are suitable, but be aware that the solvent can slowly permeate the plastic over time. For aqueous formulations like CS and WDG, poly tanks are a good choice without concerns about solvent attack.

Key Issue: Solvent Permeation

The aromatic solvents in permethrin EC can permeate standard polyethylene tanks over extended periods. This means that while poly tanks are generally suitable, you should consider using a dedicated tank to prevent any long-term degradation or contamination.

The safety that actually matters

• Use dedicated tanks for permethrin EC to avoid solvent damage.
• Ensure proper ventilation to prevent fume accumulation.
• Match gaskets to the manufacturer chart for chemical compatibility.

Common questions

Can I store permethrin EC in a regular poly tank?

Yes, but it's best to use a dedicated tank to prevent solvent permeation over time.

What gasket material should I use?

Viton (FKM) is recommended for permethrin EC, while EPDM is suitable for aqueous formulations.

Are there any safety precautions I should take?

Ensure proper ventilation and use dedicated tanks for EC formulations to avoid solvent-related issues.